flutter tab页面切换练手，手势滑动、禁止滑动、page切换动画，禁止切换动画。

1：AppBar、TabBar、TabBarView实现页面切换，点击tab后tabBarView有左右切换动画，滑动page联动tabBar

class DevicePage extends StatefulWidget {const DevicePage({super.key});@overrideState<DevicePage> createState() => _DeviceState();
}class _DeviceState extends State<DevicePage>with SingleTickerProviderStateMixin {TabController? _tabController;List<Tab> tabs = [const Tab(text: '设备类型',),const Tab(text: '设备规格',),const Tab(text: '设备台账',),];int _cuttentIndex = 0;List<Widget> tabViews = [const TabDeviceType(),const TabDeviceSpecs(),const TabDeviceLedger()];@overridevoid initState() {super.initState();_tabController = TabController(length: tabs.length, vsync: this);}@overrideWidget build(BuildContext context) {return Scaffold(appBar: AppBar(automaticallyImplyLeading: false,backgroundColor: AppColors.baseColor,centerTitle: true,title: TabBar(controller: _tabController,tabs: tabs,isScrollable: false,labelStyle: TextStyle(color: Colors.white,fontSize: 16.sp,fontWeight: FontWeight.bold),unselectedLabelStyle: TextStyle(color: const Color(0x99FFFFFF),fontSize: 15.sp,fontWeight: FontWeight.normal),indicatorColor: Colors.white,dividerHeight: 0,indicatorPadding: EdgeInsets.only(top: 3.h),indicator:MyCustomIndicator(indWidth: 13.w, indHeight: 3.w, radius: 2.w),// onTap:(int index){   针对点击tab page无切换动画//   _cuttentIndex = index;//   print('index = $index');//   setState(() {}); //刷新状态// },),),body: TabBarView(controller: _tabController,children: tabViews,// physics: new NeverScrollableScrollPhysics(),  //禁止页面左右手势滑动),// body: tabViews[_cuttentIndex],);}
}